Friction reducing effect of multiply adsorptive organic polymer
Friction reducing effect of multiply adsorptive organic polymer
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多重吸附有机聚合物的减摩效果
DOI：
10.1016/j.triboint.2008.12.012
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
M. Masuko
中科院分区：
文献类型：
--
作者：
Mamoru Tohyama;T. Ohmori;A. Murase;M. Masuko
以聚甲基丙烯酸酯（PMA）为模型添加剂，研究了多重吸附有机聚合物的分子结构与其减摩效果及表面边界膜性质之间的关系，以期为设计新型高效减摩添加剂提供指导。有人发现，PMA可以通过形成吸附的边界膜，保留类似的PMA添加剂在摩擦表面上的结构，以减少摩擦。随着分子量的增加和吸附极性基团的增加，PMA的减摩效果变大。据推测，增强的减摩效果是由于增加了表面上形成的边界膜的覆盖率，并通过减少相对表面之间的固体接触。
The relationships among molecular structures of multiply adsorptive organic polymers, their friction reducing effects and the properties of boundary films formed on surfaces were investigated using polymethacrylates (PMAs) as model additives in order to set guidelines for designing new effective additives for reducing friction. It was found that PMAs can reduce friction by forming adsorbed boundary films that retain structures similar to that of PMA additives on rubbed surfaces. The friction reducing effects of PMAs became larger with increasing molecular weight and increasing adsorptive polar groups. It is speculated that the enhanced friction reducing effects were caused by increasing the coverage of the boundary films formed on the surfaces and by decreasing solid contact between opposing surfaces.